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Reminder: The OEIS is hiring a new managing editor, and the application deadline is January 26.
| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 1 |
| 3 | 2 |
| 4 | 2 |
| 5 | 12 |
| 6 | 12 |
| 7 | 360 |
| 8 | 360 |
| 9 | 720 |
| 10 | 720 |
| 11 | 151200 |
| 12 | 151200 |
| 13 | 349272000 |
| 14 | 349272000 |
| 15 | 349272000 |
| 16 | 349272000 |
| 17 | 10488638160000 |
| 18 | 10488638160000 |
| 19 | 5354554667061600000 |
| 20 | 5354554667061600000 |
| 21 | 5354554667061600000 |
| 22 | 5354554667061600000 |
[1,1,2,2,12,12,360,360,720,720,151200,151200, 349272000,349272000,349272000,349272000, 10488638160000,10488638160000,5354554667061600000, 5354554667061600000,5354554667061600000, 5354554667061600000] |